Java: bitcoinj; how to download a full block?

I would like to download a full block using Java and bitcoinj and then parse it to an array to be able to work with it. Here is some (very basic) pseudocode:

connect to network;  
download latestBlock;  
write/convert block to readable array;  
read blockArray;  
   sout: blockArray[23][55] // this should get me eg. a txid, address, ...  
// or similar. I just want to be able to read values from the block 

Is there a way to do this? I found the following solution here (Using bitcoinj to discover peers and download the block chain):

public class DumpLastBlock {
public static void main(String args[]) throws Exception {
    WalletAppKit kit = new WalletAppKit(MainNetParams.get(), new java.io.File("."), "test");
    kit.startAndWait();
    BlockChain chain = kit.chain();
    BlockStore bs = chain.getBlockStore();
    Peer peer = kit.peerGroup().getDownloadPeer();
    Block b = peer.getBlock(bs.getChainHead().getHeader().getHash()).get();
    System.out.println(b);
    }
}

Unfortunately, kit.startAndWait() isn’t available anymore.

Can someone help me to get the latest block and be able to read its values?

Thank you very much 🙂